Bourbon

When grown in Mexico, they are known as Mexican vanilla beans (pods), but if the same plant is grown in Madagascar or Indonesia, they are known as Bourbon vanilla beans (pods). Some Bourbon pods may develop over time what the French call givre, which is a frosting of natural vanillin crystals. This is an indication of very good quality. Do not confuse these crystals with mildew. Crystals are sparkling white, mildew is dull green.